Question

4) The purity of phosphorus sample was tested by the redox reaction between NaOH, and phosphorus in water according to the below reaction. If 45.92 g of NaOH yielded 5.760 g PH$_3$, what is the percent impurity of phosphorus by mass? $P_{(s)} + NaOH_{(aq)} + H_2O_{(l)} \rightarrow NaH_2PO_{2(aq)} + PH_{3(g)}$

          4) The purity of phosphorus sample was tested by the redox reaction between NaOH, and phosphorus in water according to the below reaction. If 45.92 g of NaOH yielded 5.760 g PH$_3$, what is the percent impurity of phosphorus by mass?
$P_{(s)} + NaOH_{(aq)} + H_2O_{(l)} \rightarrow NaH_2PO_{2(aq)} + PH_{3(g)}$

4) The purity of phosphorus sample was tested by the redox reaction between NaOH, and phosphorus in water according to the below reaction. If 45.92 g of NaOH yielded 5.760 g PH3, what is the percent impurity of phosphorus by mass?
P(s) + NaOH(aq) + H2O(l)→ NaH2PO2(aq) + PH3(g)

Added by Alicia C.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Shalini Tyagi

12/16/2022

Step 1

- The molar mass of NaOH (sodium hydroxide) is 40.00 g/mol (Na: 22.99 g/mol, O: 16.00 g/mol, H: 1.01 g/mol). - The molar mass of PH3 (phosphine) is 33.97 g/mol (P: 30.97 g/mol, H: 1.01 g/mol). Show more…

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The purity of phosphorus sample was tested by the redox reaction between NaOH, and phosphorus in water according to the below reaction. If 45.92g of NaOH yielded 5.760gPH_(3), what is the percent impurity of phosphorus by mass? (Denklemi denkleştirdiğimizde P ve NaOH oranı 4:3 olmuyor mu? Buradaki çözüm 1:1 demiş.) P(s)+NaOH_((aq))+H_(2)O_((l))->NaH_(2)PO_(2)(aq)+PH_(3)(g) percent impurity of phosphorus by mass? P(s) + NaOH(aq)+ H2O(I) > NaH2PO2(aq)+PH3(g)